70611665 has 8 divisors (see below), whose sum is σ = 87656040. Its totient is φ = 54541312.

The previous prime is 70611641. The next prime is 70611713. The reversal of 70611665 is 56611607.

It can be written as a sum of positive squares in 4 ways, for example, as 839056 + 69772609 = 916^2 + 8353^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70611665 - 2⁶ = 70611601 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243344 + ... + 243633.

It is an arithmetic number, because the mean of its divisors is an integer number (10957005).

Almost surely, 2^70611665 is an apocalyptic number.

It is an amenable number.

70611665 is a deficient number, since it is larger than the sum of its proper divisors (17044375).

70611665 is a wasteful number, since it uses less digits than its factorization.

70611665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487011.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 70611665 is about 8403.0747348813. The cubic root of 70611665 is about 413.3254532981.

The spelling of 70611665 in words is "seventy million, six hundred eleven thousand, six hundred sixty-five".